Cistern-mold.



, PATENTED MAR. 2o, 1906. W. H. LUCAS. f

,GISTERN MOLD.'

l APPLICATION FILED' 5011.30, 190s.'

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' UNITED STATES PATENT oEEroE.

WILLIAM H. LUCAS, or NEWARK, oHIo.

GISTERN-MOLD.

i Specication of Letters Patent.

Patented March 20, 1906.

Application tiled October 30,1905. Serial No. 285,207.

y molds for making cisterns, catch-basins, and

the like from concrete or other plastic material; and it consists of certain novel features of construction, combination, and arrangement of parts, as will be hereinafter described and claimed.

The object of the invention is -to providera simple, inexpensive, rigid, and durable mold of this character which may be quickly and l easily set up for use and knocked down to permit its removal fromthe molded structure.`

The above and'other objects, which will appear as the nature of my invention is bet ter understood, are accomplished by means `of the construction illustrated in the accompanying drawings, in -which- Figure Vl is a vertical sectional View through a molded concrete cisternwith my improved mold therein. Fig. ,v2 is a horizontal sectional view through the same, taken on the line 2 2 in Fig. 1. Fig. 3 is a pers ective view of the inner face of one of the si e sections of the mold. Fig. 4 is a perspective view of the outer face of the adjustable side section of the mold. Fig. 5 is a perspective view of one of the top sections of the mold, and Fig. 6 is a perspective view of the adjustable head for supporting the top sections of the mold. 1

Referring to the drawings by numeral, 1 denotes my improved mold, which is composed of a plurality of vertical side sections 2 and inclined top sections 3, formed, preferably, ofboards of sufficient size, which may be varied according to the size and character of the cistern or other structure to be-molded. Each of the vertical side sectionsv 2 is in the form of a flat rectangular board', which has secured u on its inner face, preferably at its center an adjacent to each end, transverselyrextending angle-metal cleats 4. These cleats are right-angular vin cross-section and 1 have one of their sides or flanges secured by means of screwsor the like 5, so that their opposite sides or flanges 6 project inwardly at right angles. Thesetransverse cleats 4 in addition to strengthening the boards 2 serve as means for detachably connecting them when placed edge to edge in constructing the mold, as shownpin Figs. 1v an d2. The connection between the ends vof the adjacent cleats 4 is preferably eected by forming said ends with apertures or openings 7 to receive the ends or arms 8 of U-shaped clips or staples 9. These clipsor staples 9 are preferably so sha ed that-when driven into the openings 7 t ey will draw the ends of the cleats, and hence the adjacent edges of two of the mold-sections 2, together.

The side edgesv of the mold-sections 2 may be beveled slightly, as shown at 10 in Fig. 2, to cause the said sections to fit closely together, and upon the outer face of. one of the side mold-sections 2, preferably the last one that is placed in position vin erecting the mold, aplate or strlp of sheet-steel or other metal. is secured. This platel 1 extends from end to end of said mold-section and is preferably mounted so that it may be adjusted laterally thereon to vary the width of said `section by providing in it transversely-extending slots l2 toreceive headed screws 13, asclearly shown in Fig. V4 of the drawings. By thus making one of the4 side sections of the mold adjustable in width it will be seen that the mold maybe made of any desired width or diameter and all of the mold-sec-4 tions will rmly engage each other, so that there will be no projecting or rough portions within the molded cistern.

The top mold-sections 3 are in the 'form of tapered or wedge-shapedA` boards, which are arranged so as-to form a cone-shaped topl upon the cistern. These sections 3v have their lower outer ends supported upon the upper ends or edges of the side sections 2 and are preventedfrom slipping 0H from the same by angle-metal stops 14, which are secured u on the under side of the sections 3, as c early shown in Fig. 5 of the drawings. The converging upper and inner ends of,the to sections 3 are supported upon an adjustab e IIO lil

of the mold-sections 3. The braces 18 are in the form of angle-metal arms which radiate from the centers of the four sides of the sleeve 17, the latter being square to fit the post 16, which is also square in cross-section. The braces 19 are inclined upwardly and outwardly, as shown. The head 15 is adapted to be adjustably secured at any height upon the post 16 by means of a locking-pin 21, which is passed through any one of a longitudinal series of transverse pins 22, formed in said post. The pin 21 is adapted to support the lower sleeve 17 a, and to prevent it from being lost it lis preferably attached to said sleeve by a chain or other loose connection 23.

The mouth or neck of the concrete cistern may be of any shape and formed in any desired manner; but I preferably provide inner and outer cylindrical collars 24 25, which are supported upon the top mold-sections 3, as shown.

The use and advantages of the mold will be readily seen. When it is desired to mold a concrete cistern or the like, a hole is dug in the earth of slightly-greater size than the cistern to be erected, and the mold is then set up in the same, as shown in Figs. 1 and 2 of the drawings. This mayA be quickly and easily done, owing to the manner in which the side sections are held together. After the mold has been set up the concrete is packed around the same, and as soon as it hardens the mold may be quickly and easily removed by removingthe pin 21, which permits the head 15 to drop down upon the post 3 5 6 and allows the top sections 3 to be taken out. After this is done the side sections may be quickly removed by removing the staples 9 to permit them to be separated.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The herein-described mold comprising a plurality of side sections having their adjacent edges beveled and in contact, angle-metal cleats secured transversely on said sections, on the inner sides thereof, and having openings near their ends, and substantially inverted- U-shaped clips having their arms engaged with the openings in said cleats and connecting the cleats together and thereby serving to secure said side sections together, one of said side sections having an adjustable plate on its outer side, near one edge, to bear against the opposing edge of the next adjacent side section and cover the space between them.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

W. H. LUCAS. Witnesses:

J. HOWERD JONES, lf I-I. H. SPARKS. 

